Re: TC Secondary Currents - was ( Experimental Help - Terry?)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

Any tine current flows a magnetic field is produced. This is a fact in air,
a vacuum, copper wire, and when the earth turns moving electrons in the
circle of earths surface. If you question this buy a .25$ mag compass and
test it for your self. If the neadle moves a magnetic field was produced.
No, this will not respond to fast moving AC pulses, but it will show pulse
flow and slow event changes. A center grounded coil inside of 2 aluminum
plates or a tube will give scope responces. To put a coil in a tube shape
the tube in a loop. Then hack-saw a slot all the way around the
circumference. Drill a 1/8" hole half way around for a wire exit. wind
magnet wire inside the tube through the groove and epoxi the joint space of
the tube to prevent a shorted turn in the shield. connect a ground
connection to the tube near the exit hole and you have a pick up loop to
measure magnetic fields with no electrostatic input.use shielded wires.
   Robert  H 

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Sun, 03 Mar 2002 19:26:05 -0700
> To: tesla-at-pupman-dot-com
> Subject: Re: TC Secondary Currents - was ( Experimental Help  - Terry?)
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Sun, 3 Mar 2002 19:31:57 -0700
> 
> Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>
> 
> Tesla list wrote:
> 
>> Can you give an experimental reference to this mysterious magnetic field
> around
>> this "displacement current"?  Can we measure it magnetically?  Could a small
>> flat plate capacitor placed in the center of a Pearson current transformer
>> measure this current?  It can sure measure the current in the leads up
to the
>> capacitor.
> 
> The electric field between the plates of the capacitor is changing while
> it is being charged, and a changing electric field produces a changing
> magnetic field.
> I didn't try this, but I imagine that if you make a small coil probe,
> connected to an oscilloscope (or simply an AC meter), and place it
> between the plates (axis parallel to the plates) of a capacitor that
> is being charged of discharged (or simply with an AC voltage applied
> on it) you will see the magnetic field caused by the displacement
> current. A current transformer would serve too (magnetic loop parallel
> to the plates).
> A problem is that it can be difficult to separate the magnetic field
> generated by the displacement current  from the field generated by the
> wires going to the capacitor plates and by currents in the plates
> themselves. But you can short-circuit the capacitor, while keeping
> the same current through it (connecting an AC current source to the
> capacitor) and see if something changes.
> 
> Antonio Carlos M. de Queiroz
> 
> 
>